The demand for a larger lobby often stems from the game's own design cues:
Surviving on a starter island is difficult with two people; four players could divide labor between deep-sea diving, hunting, and base building more effectively. Alternative: Steam Remote Play Together stranded deep 4 player mod
As of now, there is that officially expands the lobby size to four players for online play. The game was built from the ground up as a single-player experience, and even the official 2-player co-op update introduced significant stability challenges. The demand for a larger lobby often stems